Drying tower with waste heat recovery function
By installing a snake-shaped bent pipe and insulation sleeve on the outside of the drying tower, the waste heat in the hot air is absorbed and recovered, and the heat collection mechanism is used to convert it into reusable thermal energy resources, the problem of waste heat waste of the drying tower is solved, and the energy utilization efficiency is improved and production costs are reduced.
Patent Information
- Application Number
- CN202421985682.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The waste heat generated by existing drying towers during operation is directly discharged into the atmosphere, resulting in energy waste and increased production costs.
A drying tower with waste heat recovery is designed. By installing a snake-shaped bent pipe and thermal insulation sleeve on the outside of the tower body, the waste heat in the hot air is absorbed, and the waste heat is converted into reusable thermal energy resources through a heat collection mechanism.
It effectively reduces heat loss, improves the efficiency of waste heat recovery, reduces the production costs of enterprises, and is in line with the development trend of energy conservation and environmental protection.
Smart Images
Figure CN222912283U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste heat recovery, in particular to a drying tower with waste heat recovery. Background Art
[0002] In the food processing industry, as one of the key equipment, the drying tower plays a crucial role. It uses hot air or other heat sources to efficiently and evenly dry food materials, aiming to remove the excess moisture in the materials to achieve the purposes of extending the shelf life, improving the taste, facilitating storage and transportation, etc. However, with the rapid development of the food processing industry and the increasing awareness of environmental protection, the problem of waste heat generated during the operation of the drying tower has gradually emerged. Specifically, when the drying tower heats and circulates hot air to evaporate the moisture in the food materials, a large amount of waste heat will be released.
[0003] Currently, this waste heat often exists in the form of hot air, steam or hot water, with a relatively high temperature and rich in energy. In the production process, this waste heat is often directly discharged into the atmosphere. This waste of waste heat resources not only causes a great loss of energy but also increases the production cost burden of enterprises. Therefore, we propose a new type of drying tower with waste heat recovery. Summary of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the utility model provides a drying tower with waste heat recovery, which solves the problems that the waste heat discharged from the food processing drying tower is directly discharged into the atmosphere, resulting in a waste of waste heat resources, a great loss of energy, and an increase in the production cost burden of enterprises.
[0006] (2) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solutions: A drying tower with waste heat recovery, including a tower body. An inlet mechanism is arranged at the top of the tower body, an outlet mechanism is arranged at the bottom of the tower body, a heat utilization mechanism is arranged outside the tower body, a heat collection mechanism is arranged on the left side of the heat utilization mechanism, a hot air inlet pipe is fixedly installed at the lower right corner of the tower body, and a hot air outlet pipe is fixedly installed at the upper left corner of the tower body;
[0008] The heat utilization mechanism includes a serpentine bend pipe, which is wound around the outside of the tower body and in contact with the tower body. A heat insulation sleeve is arranged outside the serpentine bend pipe.
[0009] Preferably, the serpentine bend pipe is located between the tower body and the heat insulation sleeve, and the upper end of the serpentine bend pipe is fixedly connected to the air outlet pipe.
[0010] Preferably, the serpentine elbow is made of stainless steel material.
[0011] Preferably, the feeding mechanism includes a feeding pipe fixedly installed at the top of the tower body, and a feeding bin is fixedly installed at the upper end of the feeding pipe.
[0012] Preferably, the discharging mechanism includes a discharging cylinder fixedly installed at the bottom of the tower body, a discharging valve is fixedly installed at the lower end of the discharging cylinder, and a discharging pipe is fixedly installed at the lower end of the discharging valve.
[0013] Preferably, the heat collection mechanism includes a recovery pipe fixedly installed at the lower end of the serpentine elbow, a heat exchanger is fixedly connected to the left end of the recovery pipe, and a heat collection box is fixedly installed at the left end of the heat exchanger.
[0014] Preferably, an air outlet switch is fixedly installed on the left side of the heat collection box, and an air outlet pipe is fixedly installed at the left end of the air outlet switch.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the present utility model provides one, having the following beneficial effects:
[0017] 1. By arranging a heat utilization mechanism outside the tower body in the present utility model, the serpentine elbow is in close contact with the tower body. The serpentine elbow can effectively absorb the high-temperature waste heat in the discharged hot air, perform secondary heating on the outer side of the tower body. At the same time, the heat insulation sleeve outside the serpentine elbow plays a key heat insulation role. A heating cavity is formed between the heat insulation sleeve and the tower body. The heating cavity not only further reduces the heat loss, but also improves the efficiency of waste heat recovery. Under the protection of the heat insulation sleeve, the hot air in the serpentine elbow can maintain a relatively high temperature, ensuring that the heat of the waste heat is fully utilized;
[0018] 2. By arranging a heat collection mechanism cooperating with the heat utilization mechanism outside the tower body in the present utility model, the hot air passing through the serpentine elbow continues to flow, enters the heat exchanger through the recovery pipe. The heat exchanger, as the core component of the heat collection mechanism, converts the waste heat of the hot air into reusable heat energy resources. The heat generated during the heat exchange process is collected in the heat collection box. The heat energy in the collection box can be used to preheat the air about to enter the drying tower or provide heat energy support for other production links, improving the energy utilization efficiency, reducing the production cost of the enterprise, and also conforming to the current development trend of energy conservation and environmental protection, providing strong support for the sustainable development of industries such as food processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic structural view of the present utility model;
[0020] Figure 2 is a schematic structural view of the serpentine elbow of the present utility model;
[0021] Figure 3 This is a schematic diagram of the hot air outlet pipe structure of the present utility model.
[0022] In the figure:
[0023] 1. Tower body;
[0024] 2. Feeding mechanism; 21. Feeding pipe; 22. Feeding bin;
[0025] 3. Discharging mechanism; 31. Discharging cylinder; 32. Discharging valve; 33. Discharging pipe;
[0026] 4. Heat utilization mechanism; 41. Serpentine elbow; 42. Heat insulation sleeve;
[0027] 5. Heat collection mechanism; 51. Recovery pipe; 52. Heat exchanger; 53. Heat collection box; 54. Air outlet switch; 55. Air outlet pipe;
[0028] 6. Hot air inlet pipe;
[0029] 7. Hot air outlet pipe. Specific implementation mode
[0030] In the present utility model, unless otherwise stated, the directions such as "up, down" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually the left and right shown in the drawings; "inside, outside" refer to the inside and outside of the contour of each component itself, but the above direction words are not used to limit the present utility model.
[0031] Please refer to Figures 1 to 3 , the present utility model provides a technical solution:
[0032] Embodiment 1
[0033] As Figures 1 to 3 , the present utility model provides a drying tower with waste heat recovery, including a tower body 1, characterized in that: a feeding mechanism 2 is arranged at the top of the tower body 1, a discharging mechanism 3 is arranged at the bottom of the tower body 1, a heat utilization mechanism 4 is arranged outside the tower body 1, a heat collection mechanism 5 is arranged on the left side of the heat utilization mechanism 4, a hot air inlet pipe 6 is fixedly installed at the lower right corner of the tower body 1, a hot air outlet pipe 7 is fixedly installed at the upper left corner of the tower body 1, the heat utilization mechanism 4 includes a serpentine elbow 41, the serpentine elbow 41 is wound around the outside of the tower body 1, the serpentine elbow 41 is in contact with the tower body 1, a heat insulation sleeve 42 is arranged outside the serpentine elbow 41, the serpentine elbow 41 is located between the tower body 1 and the heat insulation sleeve 42, the upper end of the serpentine elbow 41 is fixedly connected to the air outlet pipe 7, and the serpentine elbow 41 is made of stainless steel material.
[0034] In this embodiment, the serpentine elbow 41 made of stainless steel material is not only corrosion-resistant and high-temperature resistant, but also can closely fit the tower body 1, effectively absorbing and transferring the waste heat in the hot air. The addition of the heat insulation sleeve 42 forms a heating cavity with excellent heat insulation effect, reducing the unnecessary loss of heat and making the entire drying process more energy-efficient and efficient.
[0035] Embodiment 2
[0036] As Figures 1 to 3 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the feeding mechanism 2 includes a feeding pipe 21 fixedly installed at the top of the tower body 1, and a feeding bin 22 is fixedly installed at the upper end of the feeding pipe 21. The discharging mechanism 3 includes a discharging cylinder 31 fixedly installed at the bottom of the tower body 1, a discharging valve 32 is fixedly installed at the lower end of the discharging cylinder 31, and a discharging pipe 33 is fixedly installed at the lower end of the discharging valve 32.
[0037] In this embodiment, the feeding mechanism 2 at the top of the tower body 1 ensures that the food materials can enter the drying tower smoothly and continuously. The design of the feeding bin 22 facilitates the large-scale feeding of materials, while the feeding pipe 21 ensures the smooth sliding of materials under the action of gravity, avoiding the occurrence of blockage. The addition of the discharging valve 32 makes the discharging process more flexible and controllable, and the discharging speed of materials can be adjusted according to actual needs.
[0038] Embodiment 3
[0039] As Figures 1 to 3 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the heat collection mechanism 5 includes a recovery pipe 51 fixedly installed at the lower end of the serpentine elbow 41, a heat exchanger 52 is fixedly connected to the left end of the recovery pipe 51, a heat collection box 53 is fixedly installed at the left end of the heat exchanger 52, an air outlet switch 54 is fixedly installed on the left side of the heat collection box 53, and an air outlet pipe 55 is fixedly installed at the left end of the air outlet switch 54.
[0040] In this embodiment, through the heat collection mechanism 5 starting from the recovery pipe 51, the hot air carrying waste heat is introduced into the heat exchanger 52. Inside the heat exchanger 52, the heat in the hot air is transferred to other media (such as water or air) through the principle of heat exchange, realizing the efficient recovery of heat. The heat collection box 53, as the storage and distribution center of heat, fully considers the problem of the reuse of thermal energy in its design. The thermal energy in the collection box can be flexibly allocated through the air outlet switch 54 and the air outlet pipe 55, used for preheating the air entering the drying tower, providing thermal energy for other production links, etc.
[0041] During specific use, as a drying tower with waste heat recovery, the food materials are first fed into the feeding mechanism 2 installed at the top of the tower body 1. The feeding mechanism 2 consists of a feeding bin 22 and a feeding pipe 21, forming a closed feeding system. The materials are put into the feeding bin 22 through the opening, and then slide smoothly along the feeding pipe 21 under the action of gravity into the interior of the tower body 1. This design ensures that the materials can enter the drying tower evenly and continuously, laying a foundation for the subsequent efficient drying process.
[0042] Once the materials enter the interior of the tower body 1, the hot air system is immediately started. The hot air is introduced into the tower through the hot air inlet pipe 6 installed at the lower right corner of the tower body 1 and comes into direct contact with the materials. Under the blowing of the hot air, the moisture on the surface of the materials quickly evaporates, achieving efficient drying. The hot air forms a cycle inside the tower body, continuously exchanging heat with the materials until the materials reach the predetermined drying degree. After the heat exchange is completed, the hot air carries a large amount of waste heat and the evaporated moisture and is discharged through the hot air outlet pipe 7 at the upper left corner of the tower body 1.
[0043] Before the hot air is discharged from the tower body 1, it first enters the serpentine bend pipe 41 located outside the tower body. The serpentine bend pipe 41, as a key component of the heat utilization mechanism 4, is closely wound around the outside of the tower body and keeps close contact with the tower body 1. This design enables the serpentine bend pipe 41 to effectively absorb the high-temperature waste heat in the hot air and conduct secondary heating on the outside of the tower body 1, thereby reducing the heat loss inside the tower body and improving the drying efficiency.
[0044] At the same time, the heat insulation sleeve 42 outside the serpentine bend pipe 41 plays a key heat insulation role. A heating cavity is formed between the heat insulation sleeve 42 and the tower body 1. This heating cavity not only further reduces the heat loss but also improves the efficiency of waste heat recovery. Under the protection of the heat insulation sleeve 42, the hot air inside the serpentine bend pipe 41 can maintain a relatively high temperature, ensuring that the heat is fully utilized.
[0045] The hot air passing through the serpentine bend pipe 41 continues to flow and finally enters the heat exchanger 52 through the recovery pipe 51. The heat exchanger 52, as the core component of the heat collection mechanism 5, uses the principle of heat exchange to transfer the heat in the hot air to other media such as water or air. These media are heated up after absorbing the heat and become reusable heat energy resources.
[0046] The heat generated during the heat exchange process is collected in the heat collection box 53. The heat collection box 53 not only stores this valuable heat energy but also provides a convenient way to utilize it. For example, the heat energy in the collection box can be used to preheat the air about to enter the drying tower, reducing the energy consumption during the hot air heating process; or providing heat energy support for other production links to achieve cross-link utilization of energy. Finally, the fully utilized hot air or media are discharged through the air outlet switch 54 and the air outlet pipe 55 or used for other forms of reuse.
[0047] The dried material is discharged through the discharging mechanism 3 installed at the bottom of the tower body 1. The discharging mechanism 3 is composed of a discharging cylinder 31, a discharging valve 32 and a discharging pipe 33. When the drying process ends, by controlling the opening and closing of the discharging valve 32, the material can smoothly slide out of the discharging cylinder 31 and be discharged from the tower body along the discharging pipe 33. This design not only ensures the smoothness of discharging, but also facilitates the subsequent collection and processing of the dried material.
[0048] In summary, through the ingenious waste heat recovery mechanism and heat utilization system, this drying tower with waste heat recovery realizes the maximization of the utilization of waste heat resources generated during the drying process. This innovative design not only improves the energy utilization efficiency, reduces the production cost of enterprises, but also conforms to the current development trend of energy conservation and environmental protection, providing strong support for the sustainable development of industries such as food processing.
[0049] The above are only specific embodiments of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present utility model to solve basically the same technical problems and achieve basically the same technical effects are all covered by the protection scope of the present utility model.
Claims
1. A drying tower with waste heat recovery, comprising a tower body (1), characterized in that: The top of the tower body (1) is provided with a feeding mechanism (2), the bottom of the tower body (1) is provided with a discharging mechanism (3), the outer side of the tower body (1) is provided with a heat utilization mechanism (4), the left side of the heat utilization mechanism (4) is provided with a heat collection mechanism (5), the lower right corner of the tower body (1) is fixedly provided with a hot air inlet pipe (6), and the upper left corner of the tower body (1) is fixedly provided with a hot air outlet pipe (7); The heat utilization mechanism (4) comprises a serpentine curved pipe (41), the serpentine curved pipe (41) is wound around the outside of the tower body (1), the serpentine curved pipe (41) is in contact with the tower body (1), and a heat preservation sleeve (42) is arranged on the outside of the serpentine curved pipe (41).
2. A drying tower with waste heat recovery according to claim 1, characterized in that: The serpentine curved pipe (41) is located between the tower body (1) and the heat-insulating sleeve (42), and the upper end of the serpentine curved pipe (41) is fixedly connected to the air outlet pipe (7).
3. A drying tower with waste heat recovery according to claim 1, characterized in that: The serpentine curved pipe (41) is made of stainless steel.
4. A drying tower with waste heat recovery according to claim 1, characterized in that: The feeding mechanism (2) comprises a feeding pipe (21) fixedly mounted on the top of the tower body (1), and a feeding bin (22) is fixedly mounted on the upper end of the feeding pipe (21).
5. A drying tower with waste heat recovery according to claim 1, characterized in that: The discharge mechanism (3) comprises a discharge barrel (31) fixedly mounted at the bottom of the tower body (1), a discharge valve (32) fixedly mounted at the lower end of the discharge barrel (31), and a discharge pipe (33) fixedly mounted at the lower end of the discharge valve (32).
6. A drying tower with waste heat recovery according to claim 1, characterized in that: The heat collection mechanism (5) comprises a recovery pipe (51) fixedly mounted at the lower end of the serpentine curved pipe (41), the left end of the recovery pipe (51) being fixedly connected to a heat exchanger (52), and the left end of the heat exchanger (52) being fixedly mounted with a heat collection box (53).
7. A drying tower with waste heat recovery according to claim 6, characterized in that: An air outlet switch (54) is fixedly mounted on the left side of the heat collection box (53), and an air outlet pipe (55) is fixedly mounted on the left end of the air outlet switch (54).